[Boost-bugs] [Boost C++ Libraries] #7347: BOOST_ERROR_CODE_HEADER_ONLY

Subject: [Boost-bugs] [Boost C++ Libraries] #7347: BOOST_ERROR_CODE_HEADER_ONLY
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-09-08 15:44:57

#7347: BOOST_ERROR_CODE_HEADER_ONLY
------------------------------+---------------------------------------------
 Reporter:  viboes            |       Owner:  bemandawes
     Type:  Bugs              |      Status:  new       
Milestone:  To Be Determined  |   Component:  system    
  Version:  Boost 1.51.0      |    Severity:  Problem   
 Keywords:                    |  
------------------------------+---------------------------------------------
 Even if BOOST_ERROR_CODE_HEADER_ONLY is not documented I wanted to report
 this defect.

 When I define BOOST_ERROR_CODE_HEADER_ONLY building Boost.Thread I get the
 following error:


 {{{
 ld: duplicate symbol boost::system::system_category()     in
 ../../../bin.v2/libs/thread/build/darwin-4.2.1/debug/threading-
 multi/future.o and ../../../bin.v2/libs/thread/build/darwin-4.2.1/debug
 /threading-multi/pthread/thread.o for architecture x86_64
 collect2: ld returned 1 exit status

     "g++" -dynamiclib -Wl,-single_module -install_name
 "libboost_thread.dylib"  -o
 "../../../bin.v2/libs/thread/build/darwin-4.2.1/debug/threading-
 multi/libboost_thread.dylib"
 "../../../bin.v2/libs/thread/build/darwin-4.2.1/debug/threading-
 multi/pthread/thread.o"
 "../../../bin.v2/libs/thread/build/darwin-4.2.1/debug/threading-
 multi/pthread/once.o"
 "../../../bin.v2/libs/thread/build/darwin-4.2.1/debug/threading-
 multi/future.o"      -headerpad_max_install_names -g
 }}}


 I guess that you need to declare the following functions inline.


 {{{
     BOOST_SYSTEM_DECL const error_category &  system_category();
     BOOST_SYSTEM_DECL const error_category &  generic_category();
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7347>
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